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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 12: French-German Session: 2D Materials, Thin Films and Interfaces I
CPP 12.4: Talk
Monday, March 9, 2026, 16:00–16:15, ZEU/0255
Optimized Phenyl-Modified g-C3N4/ZnO Hybrid Thin Films: Structural and Optical Insights — •Sahar Aghapour Ghourichay1,2, Morgan Le Du2, David P. Kosbahn2, Guangjiu Pan2, Hagen Uebele2, Thomas Baier2, Jinsheng Zhang2, Lyuyang Cheng2, Pier Carlo Ricci1, and Peter Müller-Buschbaum2 — 1Department of Physics, University of Cagliari, Cittadella Universitaria, Monserrato, Italy — 2TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany
Phenyl-modified graphitic carbon nitride (PhCN)/ZnO hybrid thin films were fabricated with different PhCN loadings to investigate the influence of interface engineering on their structural and optical properties. UV-vis reflectance results show that the film containing 1 mL PhCN exhibits the lowest reflectance and the strongest absorption in the visible region. Photoluminescence analysis confirms that this optimized film has significantly reduced emission intensity, indicating more effective charge separation. XRD, AFM, and GIWAXS measurements reveal improved crystallinity and enhanced nanoscale ordering of ZnO in the presence of moderate PhCN content. SEM/EDS mapping verifies uniform hybrid formation, and XPS provides evidence of interfacial chemical interaction. Overall, controlled PhCN incorporation effectively tunes the optical response and nanoscale structure of PhCN/ZnO thin films, offering useful insights for photocatalytic and optoelectronic applications.
Keywords: PhCN/ZnO heterostructurs; Thin-film semiconductors; GIWAXS structural analysis; Optical spectroscopy; Charge transfer interface